The closest accommodation to the Friars is the Wickham Lodge Guest House. It is 2 miles from the Friars. It has only a few rooms.
http://www.wickhamlodge.co.uk/
http://www.village-hotels.co.uk/hotels/Maidstone/
http://www.premierinn.com/pti/pTiibsRedirect.do?INNID=MAISIR&iscsell=true
Local camp sites - if you do not wish to stay at the Friars try:-
Thriftwood Camp site just off the A20 at the top of Wrotham Hill. About 8 miles from The Friars'
Address: Plaxdale Green Road, Stansted, near Wrotham Kent TN15 7PB
Telephone: 01732-822261
Bearsted Caravan Club Site in Kent on the A20 to the east of Maidstone, about 6 miles from The Friars.
Address: Ashford Road, Hollingbourne, Maidstone, ME17 1XH
Telephone: 01622 730018